2011-03-24_REPORT - C1981019 (10)

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Compendium 5 - EP044 ti?irrx REVEGETATION DATA Ground Corer vo Growing Seasons --> 2 4 7 9 SO ° Year Sampled -1 2005 2007 2010 2012 2013 Perennial Grasses Perennial Forbs Shrubs Annuals Biennials 20.1 0.3 - 29.7 34.6 0.3 - 44.4 25.0 3.9 - 22.0 r. i Noxious Utter Rock Sam Ground 39A 0.6 9.9 14.: 0.1 6.2 35.8 1.1 12.4 Ground Cover 100% ? - 80% T REVEGETATION SPECTFTCATIONS Unit: EP044 Acres: 24.6 Location: East Fill, Fist Gro Arg Season: 2003 60% e N 20105uctesi To ra h L ' y ... ... ..... 90.?:LZ.?°(V............ Aspect E Avg. % Sto s 40% - _ Regrading Notes: To soil: Mo/Yr of PlacemerrD Deptlt of Placed YopsoO : . SurfacePr ration . I 0% 2005 2007 2010 2012 2613 Soil Augmentation Activities Mo./Yr. ms/ac. ,.,,, ,... ' Woody ... Plant Density Countable Shrubs Growing Seasons -a 2 4 7 9 SO Year Sampled --> Young a mature per acre 2005 0 2007 0 2010 0 2012 2013 Seeding Dominant ,Emerpent!species- Woody Plant Density Method: (Most Current Year onl y) 1200 ......., Tot31 n PLS / Acre: 13.65 S d d S i vwmcat Rel M../Y, of Seeding M ee e pec es twvr P 1000 < ' Species Seeded: - PLS/- Thickspike Wheatgrass 22.83 800 --- - Grasses 3.46 Western W rass 7.09 a 600 ----- Thickspike Wheatgrass 0.34 Cicer Milkvetch 5.12 n ' Streambank Whea rasa 0.34 Basin Wild rye 3.94 400 - --- -- ---- - Beardless Bluebunch W. 0.67 Streambank W"rass 344 3 200 -- Western Whea rass 0.79 Volunieers 0 Slender Wh rass OA9 Chew rasa 19.00 2005 2007 2010 2012 2013 Mountain Brome 0.48 Tumble Mustard 10.63 _..n.d .. . Basin Wild a 0.20 Kentucky Bluegrass 6.30 Current AnnualPro(hlttion Pounds rAcre Roc Mtn. Fescue 0.10 3a nese Brome 4.53 Growing Seasons -> 2 4 7 9 SO Big Bluegrass 0.05 Field Pennycress 3.94 Year Sampled -> 2005 200, 2010 2012 2013 Forbs 3.06 False Salsify 1.97 Perennial Grasses - 918.9 . Western Yarrow 0.04 Smooth Brame 1.67 Perennial Forbs - 12.1 Louisiana Sae 1.04 Bluebunch Whea rass 1.48 Sub-shrubs - - Pacific Aster 0.02 Prickly Lettuce 1.48 Annual Grasses - 38.2 Cicer Milkvetch 0.30 Looseflower Milkvetch 1.08 Annual Forbs 292.3 Lewis Flax 0.09 Dandelion 1.08 Total 1,261.5 'Sainfoin 1.45 *Taxawll%composition -t;- Palmer nstemon 0.06 counting toward diversity stamlard Current Annual Production --- Rocky Mtn. Penstemon 0.06 (30/*<X<S0%) are in blue 3000 -- Shrubs 7.13 Remediation / Weed: Control -- - Servicebenrli 1.69 Measures / Other NOtes1 2500 Silver Sa a 0.06 Herbicide treatment of annual i frin ed Sae 0.01 bromes is rewmmentled. 2000 ---- --- ---- -- 8d Sa 'brush 0.02 C i Fourwin saltbush 0.84 , 1500 - Winterfat 0.53 Rubber Rabbitbrush 0.04 Shrub Qualified - Acres p Antelope Bitterbrush 2.90 (> 150 Stems per Acre) 1000 -- ---- -- -- - Wood's Rose 0.48 TBD 2010 Success Criterion - 1 Perennial Ibs(acre Mountain Snowber 0.58 500 ....... ._. .................T 48 -Shrub patches were delineated using 300 t li id 0 - s ems per acre as a gu e ne. Therefore additional acres may qualify. 2005 2007 2010 2012 2013 , i RECOMMENDATIONS Diversity !. Area has low perennial grass cover for 7-year old reveg, very low WPD. Success Criteria: 2 Perennial grasses between 3% and 50% Relative Cover ? Noxious weeds are reasonably well controlled 3 Forb Relative Cover between 1% and 50% - Annual brome populations are elevated use of Plateau recommended i Growing Seasons -> 2 4 7 9 SO Monitor again In 2013 10th growing season Year Sam led --> 2005 2007 2010 2012 2013 Shrub Qualified Acres creed to be determined. Number of Perennial Grasses 4 5 5 Forbs (% Relative Cover) 47.00 5.5.1 27.36 Cedar Creek Associates, Inc. 21 Colowyo Mine 2010 Revegetation Monitoring Report